Bake-oven.



B MANISCHEWITZ, DECD. l. U., l. a MQ MANISCHEWITZ, EXECUTORS AND TRUSTEES 6F 8. MANISCHEWITZ.

BAWE OVEN. APPLICATION man ocnzs. 1911.

Que mug ed Jan 20 1916 3 S EETS-SHEET I H L nm 3 .2

Patent B. MANlSCHEWITZ, DECD. 1.'u., 1. a M. MANISCHEWITZ, EXECUTORS AND TRUSTEES OF B. mmscuewnz.

APPLICATQDN HLED OCT. ZB 9i v I I I 1,16%,555. Patented Jan. 20,1916.

3 SHEETS-SHEET 2- J" l; ammmw @WMMW BEHR MANISCHEWITZ, F CINCINNATI, OHIO; JACOB URIAH MANISCHEWIT Z, JOSEPH MANISCHEWITZ, AND MAX MANISCHEWI'IIZ, EXECUTORS AND TRUSTEES 0F SAID BEHB M NIscHEw'rrz, DECEASED.

. BAKE-OVEN.

Specification of Letters Patent. 0

Patented Jan. 25, 1916.

. To all whom it may concern Be it known that I, BEHR MANISCHEWITZ, a cltizen of the United States of America,

.and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented a certain new and useful Improvement in Bake-Ovens, of which the following is a specification.

This invention relates to the class of bakeovens for matzos (unleavened bread"), crackers, bread, cakes and other similar bakery goods having a traveling apron or carrier device that conveys the said class of food products to be baked within the oven, from the receiving-point to the discharge-point,

and it has for its object the followingnamed list of advantageous features: The employment or provision of iron or other similar readily heated and radiating metal for a traveling-carrier oven, which iron or other metallic substance is used instead ofv the customary fire-brick or fire-tile, either of which latter very slowly heats and cools and does not radiate its heat as readily or effectually as does'said metallic substance, nor

does either said brick or tile present the same economy in the manufacture and use of a bake-oven .of the class referred to; the separate, distinct" and independent firing and heating means for either or both the top and bottom of the oven, to maintain uniform heat and corresponding uniform baking; the peculiar means of ventilation of the oven, whereby the required volume of heat and the liberation of vapors or moisture 1s'held under due control in the several sections or chambers provided in the length of the oven by the employment of 0116301 more transverse partitions in the baking-chamber and whereby the goods are uniformly baked as they advance from-the receiving-point toward the discharge-point, and the employment or provision, in a traveling-carrier bake-oven,

of a longitudinal series-of transverse roof and floor arches, each of which curves at rightangles to the length of the oven instead of being one continuous, longitudinal I plain arch and flat plane floor, whereby the oven is held under more certain and delicate control, to secure the desired uniformity and conformity of heat throughout the length and width thereof, all of which features are useful in producing goods that are evenly and properly baked and avoid-the necessity of sorting out any improperly, baked goods, such latter defect noticeably and materially existing in other structures of bake-ovens as heretofore made. I I

The invention consists in certain novel features of arrangement and construction of parts that will be fully described hereinafter and then particularly pointed out in the claims.

In the accompanying sheets of drawings, Figure 1 is a longitudinal elevation (broken out between ends) of my invention; Fig. 2, a longitudinal section, (broken out at several points between ends, but the reverse of Fig. 1) taken on three different, vertical dottedlines, viz. a, a of Fig. 4, Z), 6 of said Fig. 4,

and c, c of said Fig. 4, to illustrate the internal structure of the oven at different points in its length; Fig. 3, a transverse section taken on the dotted-line c, e of Fig. 1; Fig. 4-, a transverse section taken on the dotted-line (Z, (Z of Fig. 1; Fig. 5, a sectional plan taken on the dotted-line 7, f of Figs. 1 and 4; and Fig. 6, a sectional plan taken on the dotted-line g, g of said Figs. 1 and 4, the

same being on a line with the horizontal center of the baking-chamber and showing face is composed of a longitudinal series of transverse upper metal rches 9 forming the roof, metal sides 10 and a longitudinal series of lower metal arches 11, forming the bottom all as best seen in Fig. 2. It isimportant and preferable herein to lnzlhe the -ing of the goods properly provided for.

inner surface of the oven. whether arched or hat. of iron, because that substance readily heats and cools and; besides. it radiates the heatfor baking purposes to better advan tagethan any other material and, at the same time, it is somewhat more economical to manufacture and handle. and to suhsequently repair or maintain in use.

12 indicates each one of a longitudinal series of transverse firing-chambers located be: neath the baliing chamlier 8, at suitable intervals apart and each one provided with a vertical elhowed-tlue 13 leading to the horizontal main-flue ll. the latter being located at the top of the oven-struetln'e and leading to the exit-flueor chimney 7, all as best seen in Fig. Regulating-(lampers 17 are provided in the vertical up-flues 1 and have suitable handled-ends 16 conveniently located along the outer face of the oven-wall 1.

17 indicates each one of a longitudinal series of transverse firing-chambers located at suitable distancesapart above the bakingchamber 8, preferably in due vertical alinement with the lowerfiring-cha1nbers 12 and each provided with a short vertical up-flue 1S controlled by regulating-dampers 19 and. also. "provided with short lateral flues 20 leading to a common transverse flue 21 that is provided with a regulating-damper 22 that closes the outlet 23 thatleads into the main-flue- 11. I The short fines or outlets 18 for the direct upward escape of heat and gases from the upper firing-chambers 17 lead to the n'iain-tlue Hand are shown in unbroken as well as in dotted lines in Fig. 2. The main-flue 1% extends across the entire top of the oven-structure so as to be reached by all of the exit or uptake flues from below as best seen in Fig. 5.

The firing-chambers 12 and 17 are each provided with a double set of gas-burners 2%. that receive their supply of gas or burning-fluid from the main supply-pipe horizontally arranged along the front face 1 of the oven-structure and provided with vertical extensions or branches 26, the latter duly supporting said burners so that their jetsof flame shall project into thesaid firingehambers 12 and 17. respectively, and that the flame from the lower burners shall radiate upwardly toward the bottom of the baking-chamber and-that the flame from the upper burners shall radiate downwardly toward the top or roof of the baking-,elnynrber. so as to duly direct and eoncentratethe -.heat where it shall prove most ell'ective in the operation of the oven. The. burners are all supplied with siutable regulating-valves 27 whereby tl: orlg nal source ot heat for t the oven is initially held under'due control,

from the receiving-end of the oven to the discharge-end thereof, and the uniform bak- It is obvious that any other source of heat supply can be provided in the tiring-chainbers 12 and 17, and I do not wish to be coir fined to the use of gas burners only. but which gas-burner system I have shown here in as it is the most convenient form now at hand.

indicates a horizontal steam or moisture exit-flue having verti'al pendent branches 22) leading to the top or roof of the transversely-arched baking'chamber S and provided with controlling-dampers W. the latter having suitable handles conveniently arranged on the outside of the front wall 1 whereby the vapor or steam arising from the moisture in the goods passes or escapes. prelerably. but not essentially. under due regu-. lating-control into the atmospluaie through the suction-fan controlled exit 31'. all as best seen in Fig. 3

3; indicates each one of a longitudinal series of transverse partitions arranged in the bahing-chamber 8. at suitable distances' apart to divide said balv'in'g-chaml)er into a number of distinct baking-sections that are adapted to progressively vary in heat or temperature from the receiving-end of the baking-chamber to the discharge-end thereof. to suit the position of the goods in the advancing course of their baltirig-operation. These 'mrtitions 3'. are each preferably made up of a series of vertical plates pivotally supported by means of a horizontal rod 33 that leads to the outer face of the front wall 1 and has a convenient drawing the said p'ivotally-held plates outwardl y through the vertical slots 31 made in the wall 1, whereby two or more bakingsections can be thrown into one. These partitions are useful, too. when it is desired to provide an unobstructed passage of greater or less width between baking-sections and when it is desired to permitobjects to pass beneath thatwill not otherwise clear the lowerIedges of said hinged or pivotally-held metal plates. The goods a: normally and ordinarily clear the lower yielding edges of said pivotally-held plates without injury when pa ing along on the traveling apron or (:ll'litl the latter being an endless one. as customary, and made up of wire cloth, or metal plates or bars, as desired, that are mounted on drums or rolls 36 that are suitably driven by a power device. The partitions -32 can obviously be made stationary and of a single piece ofmaterial if desired.

.\t the fore or receiving end 3 of the baking-chamber I provide an automatic feed handle for use in able discharge-table 38 is provided at the rear or discharge end of the baking-chamber,

such table being placed closely adjacent but not touching the traveling apron or carrier as it rides over the upper one of the drums or rolls 36 at the rear end of the ovenstructure. 7,

The longitudinal series of transverse upper and lower arches in the baking-chamber provide better control of the heat and gases within said bakingchamber at difierent points along thevroute or passage of the goods in the baking process. and the separate and distinct firing of the upper and lower burner or firing chambers. also provides for the due controlpf the heat on both the top and bottom ofi thef'baking-chamber. Besides, the thorough system of ventilation,

controlled by the dampers that are best shown in Figs. 1. 2 and 3. and described in detail, provides for the due escape of steam or moisture from each and every bakingsection of the chamber-S, so that the goods are properly acted upon by the duly controlled heat and thereb uniformly baked and browned to suit the will of the bakerand the demands of the trade and the user.

I have referred to the use of iron or other similar metallic'substance for the baking chamber and the traveling apron or carrier and have stated at the beginning of this specification whv I prefer the use of such material. instead of using fire-brick or firetile, and I do not deem it necessary to refer to any further details in connection therewith at this point except to emphasize its employment in the building and operation of a traveling-carrier bake-oven, although it (iron) is not conclusively nor exclusively essential to.the form of structure otherwise herein.

I claim:'

1.- A traveling-carrier bake-oven for matzos. crackers. bread. cakes and like bakery goods cmnprising suitable main walls. a longitudinal series of transverse. independentl v-partitioned firing-chambers within said main-walls.and a longitudinal tunneled bakingwhainl)er provided within. said mainwalls and composed of an independent tunneled iron structure that is arranged in heating-relation with said iiring-clnunbers.

Q. A traveling-rarrier bake-oven comprising suitable mainavalls. a longitudinal tunneled baking-chamber. and a longitudinal series of transverse independent firingchalnbers arranged in connection with the upper face of said tunneled laiking-chamber. 4

3. A traveling-carrier bake-oven comprising suitable main-walls. 'a longitudinal tunneled baking-chamber arranged and supported within said walls and composed of a metallic substance. and a longitudinal series of transverse indep "dent firing-chambers arranged in connection with both the tlpper and lower faces of said tunneled bakingchamber.

l. A traveling-car ifer bake-oven comprising main-walls, a longitudinal series -'oftransverse upper and lower firing-chambers within said walls, and a longitudinal ti1n-" neled baking-chamber arranged between said upper and lower series of. firing-chambers and having a longitudinal continuous series of transverse upwardly-disposed or convex roof-arches. I v

A traveling-carrier bake-oven comprising outside walls, a longitudinal series of transverse firing-chambers arranged within said walls, and a longitudinal tunneled baking-chamber also arranged within said walls and having alongitudinal continuous series of transverse convex floor-arches.

6. A traveling-carrier bake-oven comprising outside walls, a longitudinal series of transverse firing-chambers arranged within said walls. and a longitudinal tunneledbaking-chamber also arranged within'said walls and having a longitudinal continuous series of transverse upwarally-disposed or convex roof and floor arches composed of iron therein.

T. A traveling-carrier bake-oven comprising supporting or housing walls, a longit-u" dinal series of upper transverse firing-chant bers, a longitudinal series of lower trans?- verse firing-chambers, a longitudinal mirneled baking-chamber extending from this receiving-end of the oven to the dischargeend thereof but intervening said upper and lower series of transverse firing-cham ers, a main-flue in the oven leading to anexitchimney. (lamper-regulated heat exit-fines leading from said upper firing-chambers to said main-flue, damper-regulated heatexitflues leading from said lower firing-Chambers to said main-flue in the oven. and transverse swinging partitions arranged in said baking-chamber.

8. A traveling-carrier bake-oven compris- I ing supporting main-walls. a longitudinal series of transverse independent firing-chambers arranged and supported within said walls. a longitudinal tunneled metallic bakf ing-chamber. arranged and supported withiin said walls. and steam or moisture exit l-lues leading from said baking-chambera f 9. A traveling carrier bake-oven comprisiing supporting main-walls. a longitudinal series of transverse upper firing-chambers. a longitudinal series. of transverse lower {firs ing-chambers, a longitudinal tunneled baking-chamber intervening said upper and lower series of firing-chambers. and suitablv regulated steam or moisture exit-flue arranged in said baking-chamber.

10. A traveling-carrier bake-oven com prising supporting main-walls, a longitudi .nal tunneled baking-chamber, a longitudinal series of upper transverse firing-chamfiring-chambers havlng suitable heat-radiziting surfaces and both said heat-radiating Gopie s of @1111 surfaces being adapted to radiat e into said longitudinal tunneledbaking-chamber.

I BEHR MANISCHEWITZ. Witnesses: 4

JOHN ELIAS JON S, LORETTA LUCK.

pdtent may' be obtained for five cents aqh, by addressing the Gox'nmissioner of ratents',

} Washington, p c. 

